1
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following equation exhibits integrated rate law equation for first order reaction?
A
$\mathrm{k}=\frac{[\mathrm{A}]_0-[\mathrm{A}]_1}{2}$
B
$\quad \mathrm{k}=\frac{2.303}{\mathrm{t}} \times \log \frac{\mathrm{a}}{(\mathrm{a}-\mathrm{x})}$
C
$\quad k=\frac{1}{t} \ln \frac{(a-x)}{a}$
D
$\quad \mathrm{k}=\frac{1}{\mathrm{t}} \times \frac{\mathrm{x}}{\mathrm{a}(\mathrm{a}-\mathrm{x})}$
2
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following statements is NOT true about physisorption?

A
The forces operating are weak van der Waals forces.
B
It is not specific in nature.
C
It is irreversible.
D
The heat of adsorption is low and lies in the range $20-40 \mathrm{~kJ} \mathrm{~mol}^{-1}$.
3
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following is a semisynthetic polymer?

A
Silk
B
Terylene
C
Viscose rayon
D
Neoprene
4
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the molar mass of an element having density $19.2 \mathrm{~g} \mathrm{~cm}^{-3}$ if it forms fcc structure $\left[\mathrm{a}^3 \times \mathrm{N}_{\mathrm{A}}=40 \mathrm{~cm}^3 \mathrm{~mol}^{-1}\right]$

A
$192 \mathrm{~g} \mathrm{~mol}^{-1}$
B
$186 \mathrm{~g} \mathrm{~mol}^{-1}$
C
$210 \mathrm{~g} \mathrm{~mol}^{-1}$
D
$280 \mathrm{~g} \mathrm{~mol}^{-1}$
EXAM MAP